Tool for facilitating the casting of hub-liners on bearing-boxes for locomotives or the like



C. GUGGENBUEHLER. TOOL FOR FACILITATING THE CASTING OF HUB LINERS 0NBEARING BOXES FOR LOCOMOTIVES OR THE LIKE.

APPLICATION FILED JUNE 5. 1919.

. 1,344,083. Patented June 22, 1920.

zl- 7/8 /7 I 3 IJ M Z0 17 d, 1 1/ i INVENTOR ATTORNEY UNITED STATESPATENT OFFICE.

CARL GUGGENBUEHLER, 0F NEWARK, NEW JERSEY.

TOOL FOR. FACILITATING THE CASTING OF HUB-LINERS ON BEARING-BOXES FORLOCOMOTIVES OR THE LIKE.

Specification of Letters Patent.

Patented June 22, 1920.

Application filed June 6, 1919. Serial No. 302,216.

To all whom it may concern Be it known that I, CARL GUooicNnUnHLnn, acitizen of Germany, residing at Newark, in the county of Essex and Stateof New Jersey, have invented certain new and use ful Improvements inTools for Facilitating the Casting of Hub-Liners on Bearing- Boxes forLocomotives or the like, of which the following is a specification.

This application is an improvement on the application Serial No.206,320, filed December 8, 1917 and which on July 2, 1918 matured intolietters latent No. 1,271,310.

The present invention relates to means for facilitating the casting ofliners of brass or babbitt on so-called truck boxes or driving boxes ofaxle bearings for locomotives or the like, which liners usually areemployed to fill the gap or space between the hub of a wheel and itsbearing box.

According to the hitherto used methods of applying such liners, the boxis clamped in a planing machine and the liner which has been first castinto the proper shape is screwed to the box and then planed to thedesired thickness. Such method obviously renders the work more or lesscomplicated requiring separate help for casting and planing the liner.It also is objectionable because much waste of material is occasionedsince the scrapings of the expensive metal falling to the ground becomemixed with dust and other materials. If it is desired to recuperate themetal additional labor is required for separating the scrapings from themixture. But the metal even thus recuperated when heated again loosesits resisting power and becomes practically valueless.

. The object of my invention is therefore to do away with thesedrawbacks and to provide means whereby considerable labor can be savedand waste eliminated.

I accomplish this object by providing a device which can be easily andreadily rcmovably applied to the hub end of the hearing and which willform a sort of mold to receive the molten material whereby the linerwill be cast directly onto the box to be at once of the desireddimensions without requiring any subsequent finishing work.

This invention deals particularly with a device designed for forming hubliners on driving wheel boxes which ordinarily have also inner, liners,the thickness of which varies according to wear.

It is therefore another object of my invention to provide means whichwill enable the device to be adjusted according to the particular sizeor thickness of the inner liner of such boxes. With these and otherobjects in view my invention consists in the construction, arrangemcntand combination of parts as will be hereinafter more fully described andset forth in the appended claims.

Reference is had to the accompanying drawing in which similar referencecharactors denote corresponding parts and in which Figure 1 is a bottomview of a driving wheel box having an inner liner and resting on one ofits end faces and with the opposite end face directed upwardly showmg mynew device applied thereto to form the hub liner; Fig. 2 is alongitudinal section on line 22 of Fig. 1; Fig. 3 is a top plan view ofthe tool and rig. 4 is a bottom plan view thereof.

Referring in detail to the drawing 10 denotes the driving wheel box ofthe usual construction and shape as used for locomotive axles andprovided with the inner liner 10.

The device for forming the hub liner 10 comprises an iron or steel plate11 of substantially rectangular shape and corresponding in height andwidth with those of the end face of the box to which the hub liner is tobe applied. This plate may be composed of superposed layers or sectionsas the corresponding plate in my above named Letters Patent, or may bemade, as shown, in on piece. The bottom of the plate has an even andsmooth surface and is provided centrally with a substantially crescentshaped groove 12, the outer wall 12 of which is cylindrical and theinner wall 12 is shaped according to the shape of the inner liner 10. Inthe present example where the inner liner is assumed to be cylindricallyrounded the inner wall 12 is correspondingly shaped. The groove 12 is soadmeasured that when the plate 11 is placed onto the end face of the box10 the inner wall will normally coincide with the inner surface of theliner 10, while the outer wall will extend a certain distance awaytherefrom to cover a part of the end face of the box, the groove 12being adapted to surround three sides of the hollow of the box.

The outer face of the plate 11 may be formed with handles (not shown)similar to those shown and described in my aforenamed lictters latent.

For securing the plate ll in position on the llux HI, l provide suitableclamping means. A ltllflllfjfl] 1 may use clamping means similar tothose shown and described in my said Letters latent, l prefer thefollowing LfUllHtl'Ht'liUil which l found to he more cfl'ective:

Fixed to the upper face of the plate 11 are laterally and downwardlyprojecting members 13 two on each side thereof, which are in form ofangular arms. Ihe lower horizontal parts oi these arms which projecttoward the box carry clan'iping screws ll adapted to extend between theflanges in and if on each side oi the box. These sriews are lliillt oisuch a length that \Jhrn ui llt'il in our di u-tion they will engage the[linger il lo al ll ilii littlt'lf iii-low the plate ii and rlump thelatter in positioin ut when it is ii-sired to hit ihr philall i'i'oinihrJ and the mid. s rvo: are tur ed in opposite direction lliry will.with their heads ll, engage and press against the op posits flanges i lof the box as indicated by dotted lines in Fig. l and thereby lift theplate ll.

F int-c the inner liner by reason of wear raries in thickness itnecessary to proride suitable means to allow of the correspondin radjustment thereof. To this end I PIOVlLlQ an adjustable member or core15 the outer face of which ij-iuirespoinls with the shape of the innerwall 12 m inner liner il and thereiore may be rounded as shown in Fig. 4or may be angular simihir to the stationary core iii in my said Letti-Patent. The core 15 may be hooi' shaped a i own or may be a solid piece.This member or core is centrally fixed to a rod 16 and. is provided onits upper or inner surface with a ninuber of upwardly extending threadedbolts l? which through guide holes 11' made in the plate 11 projectbeyond the upper surface of the latter. The threaded ends of said boltsreceive clamping nuts 18 whereby the core after its adjustment into theproper position can be clamped to the plate 11. The rod is adapted toextend over the bottom or inner surface of the plate 11 and has its rearend 16' threaded and rotativcly borne in a bearing 19 fixed to the plateat 19. lVorlting on the free end of the rod i6 is a nut 20 which isprovided with a handle 20 by the manipulation of which the rod 16 is fedinwardly or outwardly as v the case may be and whereby the member 15 canbe adjusted according to the thickness of the inner shell or liner Aspiral spring 21 mounted around the rod 16 and suitably fixed betweenthe same and the bracket orbearing 19 serves to bring about a tightclosure between the member and the inner liner or shell 10. 22, 22denote charge holes through which the molten metal is cast into the holeor mold 12.

H the inner shell or liner ll') of the box has been worn. the member orcore 15 will have to be moved more inwardly until it will bear tightlyagainst the inner surface oi the said liner l before the hub liner H canbe cast.

The mode of using my new device is as follows The plate 11 is placedonto the end oi the box on which the hub liner is to be cast so that thecore '15 extends through the said end into the hollow oi the box. lheplate is then clamped in position by the clamping screws l-l carried bythe lateral members 13. 'lheri-upon the core or member [53 is adusted bymeans of the nut '2 so as to tightly lit against the inner surface ofthe liner lo and is secured in that position by the tight cuinp nuts InIn the example shown the inner liner is shown somewhat woln so that therorc. when adjusted. projects inwardly beyond the inner wall 19. oi themold. Thereu jicin the metal cast through the charge holes to fill themold 12 (Fig. After the molten metal has been allowed to cool the toolis removed from the box in the following manner ()n loosening the nuts18 the head or core 115 is first moved back to its initial position bythe manipulation of the handle until it clears the metal covering it asshown in Fig. 2. Thereupon the clamping screws 1-1 are unscrewed untiltheir heads 14 are brought into contact with and press against theopposite flanges 10* of the box, whereby the plate ll is forced upwardlyclearing the box and hub liner 1.0 'l he only additional. worlc that maybe necessary when the inner liner is worn is to cut oil and round offthe edge of the hub liner l0 projecting beyond the inner surface of theinner liner 10.

With this device it is thus obvious the hub liners can be readily castwithout any waste of" material and with considerably little labor.

Since the construction may be modified in numerous ways withoutdeviating from the principle of my invention, I do not wish to restrictmyself to the details shown and dc scribed.

What I claim and desire to secure by Letters Patent is 1. Thecombination with a. bearing box for locomotives or the like, of a devicefor easting a. hub liner thereon, and comprising a mold capable of beingremovably attached to the hub end of sald box to receive the moltenmetal and having a movable core adjustable relative to said mold.

2. The combination with a bearing box for locomotives or the like, of adevicafofcasting a hub liner thereon, and comprising a.

mold having a movable core adjustable relative to the mold and means forthe removable attachment of said mold to the hub end of said box.

3. The combination With a bearing box for locomotives or the like, of adevice for easting a hub liner thereon, comprising a mold having amovable core adjustable relative to the mold, means for the removableattachment of said mold to the hub end of said box and means for theadjustment of said core.

4. The combination with a bearing box having an inner liner, of a devicefor easting a hub liner thereon, comprising a mold capable of beingremovably attached to the hub end. of said box and having a movable coreand means for the adjustment of said core relative to said mold toclosely lit the inner liner of said box.

5. The combination With a bearing box having an inner liner, of a devicefor easting a hub liner thereon, comprising a plate adapted to it on thehub end of the said box and having a groove in its bottom serving as amold, a movable core adjustable relative to said mold to fit said innerliner and means for the removable attachment of said plate to said box.

6. The combination with a bearing box having an inner liner, of a devicefor facilitating the c: sting of a hub liner thereon, comprising a plateadapted to fit the hub end of the box and formed in its bottom with agroove corresponding in shape and size with the liner to be cast andhaving charge openings, a movable core adjustable relative to saidgroove and adapted to engage the hollow of the box and to it the innerliner and means for the removable attachment of said plate to said box.

7. The combination with a bearing box having an inner liner, of a.device for facilitating the casting of a hub liner thereon, comprising aplate adapted to fit the hub end of the box and formed in its bottomwith a substantially crescent shaped groove, the dimensions of whichcorrespond to those of the hub liner to be cast, a core adjustablysupported on the bottom of said plate and the outer face of whichcorresponds in shape with that oi the inner liner, and clamping meanssupported bv said plate and serving for the removable attachment of thelatter to the box.

The combination with a bearing box having an inner liner, of a devicefor facilitating the casting of a hub liner thereon, comprising a plateadapted to fit the hub end oi a box and having in its bottom a centrallyarranged groove, said groove having charge openings and serving as amold, a member or core adjustably supported on the bottom of the plateand adapted to'engage the hollow of the box and to fit the inner liner,means for guiding and fixing said member or core in adjusted positionand means for clamping said plate to said box.

9. The combination with a bearing box having flanges at its ends, oi adevice for facilitating the casting of a. hub liner thereon, comprisinga plate adapted to fit on the hub end of the box and having a groove inits bottom serving as a mold and having charge openings from andclamping screws supported from said plate and working between theopposite flanges of the box so that by turning said screws in onedirection toward the flanges at the hub end of the box the said platebecomes clamped to the latter and by turning said screws toward andagainst the opposite flanges the said plate is lifted from the said box.

10. A device for facilitating the casting of a hub liner in a bearingbox having an inner liner, comprising a plate adapted to fit on the hubend or the box and formed in its bottom with a substantially crescentshaped groove serving as a mold and having charge openings, coresupported on the bottom oi the said plate and adapted when the latter ismounted on the box to engage the hollow thereof and to [it the saidinner liner, means for adjusting said core. to snugly fit against thesaid inner liner and means for the removable attachment of said plate tosaid box.

11. A device for facilitating the casting of a hub liner on a bearingbox, comprising a plate having a groove serving as a. mold, a coremovable across said groove, manually operated means for adjusting saidcore relative to said groove, means for guiding and fixing said core inadjusted position and means for the removable attachment of said platefrom said box.

In testimony whereof I aflix my signature in presence of twoWlllllESSOS.

CARL HUGGENBUEHL'IGR. lVitnesses Fnno J. GRIESMER, Max G. ORDMANN.

